电压互感器伏安特性对电网铁磁谐振的影响

Study on the Impacts of VI Characteristic of Electromagnetic Voltage Transformer on Ferroresonance

在模拟试验的基础上，探讨了中性点绝缘电网电磁式电压互感器的伏安特性对电网铁磁谐振的影响，发现如果伏安特性差别大，在操作电网时，其谐振区、谐振性质也会有较大差异．给出了具有不同伏安特性的电压互感器的谐振区间和谐振性质，并得出了重要结论．

Based on the simulation tests,the impacts of VI characteristic of electromagnetic voltage transformers on ferromagnetic resonance in insulated neutral power systems are studied.The results show that different saturant degree of VI characteristic will cause different stability domains.As a result,the interval and the property of resonance may be different.The domain and the property of resonance corresponding to three group voltage transformers are given and analyzed,and the conclusions are put forward.